Skip to main contentSkip to navigation
RV Envy
RV floor plans
Inventory
Sell your RV
Dealers
RV EnvyPro
  • Class A motorhomes
  • Class C motorhomes
  • Class B vans
  • Fifth wheel trailers
  • Travel trailers
  • Pop-up campers
  • Advanced search
  • Floor plan wizard
  • Inventory

Browse popular layouts & features

Class A motorhomes

  • … with bunk beds
  • … with two bedrooms
  • … with bath and a half
  • … with two full bathrooms
  • … with bunk over cab
  • … with rear bathroom
Browse all features →

Class B vans

  • … with King size bed
  • … with rear twin beds
  • … with Murphy bed
  • … with rear bathroom
  • … with dual twin beds
Browse all features →

Class C motorhomes

  • … with bunk over cab
  • … with bunk beds
  • … with rear bathroom
  • … with rear twin beds
  • … with Murphy bed
  • … with outdoor kitchen
  • … with outdoor TV
Browse all features →

Fifth wheel trailers

  • … with bath and a half
  • … with two bathrooms
  • … with bunk beds
  • … with two bedrooms
  • … with side patio
  • … with rear patio
  • … with outdoor kitchen
  • … with washer/dryer
  • … with front living
Browse all features →

Travel trailers

  • … with bunk beds
  • … with two bedrooms
  • … with Murphy bed
  • … with outdoor kitchen
  • … with rear bath
  • … with front bedroom
Browse all features →

Popup campers

  • under $10k
  • under $15k
  • under 2,000 lbs
  • under 3,000 lbs
Browse all features →

RV dealers by metro area

Los AngelesDallas–Fort WorthHoustonAtlantaPhoenixTampa BayOrlandoDenverChicagoSeattleNashvilleTorontoBrowse all metro areas →

Explore

  • RV floor plans
  • Browse inventory
  • Sell your RV
  • Dealers
  • Shopping tips

Company

  • About
  • Our story
  • Contact

Services

  • Dealer leads
  • Dealer websites & CRM
  • OEM advertising
  • Shopper insights

Join our mailing list

We don't send much, but you won't want to miss it!

By subscribing, you agree to receive RV Envy newsletters and personalized recommendations by email. You can unsubscribe or change your preferences at any time.

RV Envy

The RV search engine. Find your dream RV.

We do our best to keep listing details accurate, but pricing, specifications, and availability come from third-party sources and can change without notice. We can't guarantee accuracy, so please confirm the details with the dealer before making any decisions. See something inaccurate? Contact us.

© 2026 RV Envy. All rights reserved.

For AI agentsPrivacyTerms
Dashboard
    1. Home
    2. Inventory
    3. Blue Compass RV
    4. Auburn Hills, MI
    5. 2021 Keystone Montana 3780RL

    2021 Keystone Montana 3780RLPending

    UsedFifth wheel|Stock #UT2600502|Located at Blue Compass RV in Auburn Hills, MI
    $54,063$49,900
    Save $4,163

    This unit has a sale pending.

    It's still listed because pending deals sometimes fall through. Ask the dealer to be next in line.

    RV Envy

    2021 Keystone Montana 3780RL

    Used · Fifth wheel

    $54,063$49,900Save $4,163

    Blue Compass RV – Auburn Hills

    2375 N Opdyke Rd

    Auburn Hills, MI 48326

    (248) 373-5811

    Stock #UT2600502

    2021 Keystone Montana 3780RL floor plan

    Specifications

    Length41 ft
    Dry weight13,427 lbs
    Sleeps4 people
    Slideouts4

    Full specifications

    AC BTU30000 btu
    Available BedsQueen
    Awning Info10' & 13' Electric with LED Lights
    Axle Count2
    Axle Weight7000 lbs
    Black Water Capacity49 gals
    Cargo Capacity3173 lbs
    Convection CookingYes
    Cooktop Burners3
    Dry Weight13427 lbs
    Electrical Service50 amp
    Ext Height13 ft 4 in
    Fresh Water Capacity66 gals
    Furnace BTU35000 btu
    Grey Water Capacity88 gals
    Hitch Weight2695 lbs
    LP Tank Capacity30
    Length41 ft
    Number of Awnings2
    Number of LP Tanks2
    Refrigerator Size18 cu ft
    Refrigerator TypeFour Door RV
    Shower Size48" x 30"
    Shower TypeShower w/Seat
    Sleeps4
    Slides4
    TV InfoLR 50" LED HDTV, BR 32" LED HDTV
    Tire Size16"
    Washer/Dryer AvailableYes
    Water Heater Capacity12 gal
    Water Heater TypeDSI Gas/Electric

    Options and equipment may differ from those listed. We do our best to ensure accuracy, but please confirm all details with the dealer before purchase.

    Get more info

    2021 Montana 3780RL

    2021 Montana 3780RL
    I'm interested in
    Preferred contact method
    EmailPhone callText message

    The dealer sees only your first name and general area, not your full name, email, or phone. You'll chat through RV Envy and can share your info anytime.

    By sending this inquiry, you agree to receive buyer follow-up and RV shopping emails from RV Envy. You can unsubscribe or change your preferences at any time.

    Dealer information

    Blue Compass RV – Auburn Hills

    2375 N Opdyke Rd
    Auburn Hills, MI 48326
    (248) 373-5811

    Pricing report

    Current price

    $49,900

    used

    Price history

    This unit has seen 2 price adjustments. RV Envy Pro lets you see the full price history.

    Pricing report

    Current price

    $49,900

    used

    Price history

    This unit has seen 2 price adjustments. RV Envy Pro lets you see the full price history.

    Keystone Montana fifth wheel 3780RL highlights:

    • Dual-Sink Vanity

    • Free-Standing Dinette

    • Kitchen Island

    • Hide-A-Bed Sofa

    • Opposing Slides

    • RV Refrigerator

    Don't let anything hold you back from seeing your favorite sights with this Montana fifth wheel! You will create years and years of fond memories with the luxurious and comfortable features found on this unit. The hide-a-bed sofa is located right next to the fireplace so that you can drift off to sleep peacefully with a cozy fire by your side. The power theater seating is directly across from the 50" LED HDTV which will make it easy to sit back with a cold drink as you watch the game or a late-night movie. Up at the front of this unit is a private bedroom that has a queen bed slide. This bedroom also has tons of storage space with its full-width closet, under-bed storage, and wardrobe slide.

    If you are an experienced RVer who is ready to gain more freedom on the road, then you need to check out the Keystone Montana fifth wheel! With exceptional craftsmanship, durable construction, dependable luxury, and cutting-edge technology, the Montana is truly a dream. The Montana has some easy set-up features, like an electric patio awning with LED lights, Hitch Vision with LED lighting, and MORryde Step Above entry steps with strut assist for an easy entrance. The Four Seasons Living Package allows you to camp year around with features such as, a heated and enclosed underbelly, a reflective foil insulated front cap, dual attic vents, and more! The Montana has you covered with convenient camping features, like the central vacuum, the stackable washer and dryer prep, and the Whisper Quiet Cool A/C's for an evenly and quietly cooled RV. Each model includes solid hardwood cabinet stiles, a 5K BTU decorative fireplace heater, a high-rise pull down faucet in the kitchen, plus many more interior comforts to make you feel right at home.

    Keystone Montana fifth wheel 3780RL highlights:

    • Dual-Sink Vanity

    • Free-Standing Dinette

    • Kitchen Island

    • Hide-A-Bed Sofa

    • Opposing Slides

    • RV Refrigerator

    Don't let anything hold you back from seeing your favorite sights with this Montana fifth wheel! You will create years and years of fond memories with the luxurious and comfortable features found on this unit. The hide-a-bed sofa is located right next to the fireplace so that you can drift off to sleep peacefully with a cozy fire by your side. The power theater seating is directly across from the 50" LED HDTV which will make it easy to sit back with a cold drink as you watch the game or a late-night movie. Up at the front of this unit is a private bedroom that has a queen bed slide. This bedroom also has tons of storage space with its full-width closet, under-bed storage, and wardrobe slide.

    If you are an experienced RVer who is ready to gain more freedom on the road, then you need to check out the Keystone Montana fifth wheel! With exceptional craftsmanship, durable construction, dependable luxury, and cutting-edge technology, the Montana is truly a dream. The Montana has some easy set-up features, like an electric patio awning with LED lights, Hitch Vision with LED lighting, and MORryde Step Above entry steps with strut assist for an easy entrance. The Four Seasons Living Package allows you to camp year around with features such as, a heated and enclosed underbelly, a reflective foil insulated front cap, dual attic vents, and more! The Montana has you covered with convenient camping features, like the central vacuum, the stackable washer and dryer prep, and the Whisper Quiet Cool A/C's for an evenly and quietly cooled RV. Each model includes solid hardwood cabinet stiles, a 5K BTU decorative fireplace heater, a high-rise pull down faucet in the kitchen, plus many more interior comforts to make you feel right at home.

    Specifications

    Length

    41 ft

    Dry weight

    13,427 lbs

    Sleeps

    4 people

    Slideouts

    4

    Specifications

    Length

    41 ft

    Dry weight

    13,427 lbs

    Sleeps

    4 people

    Slideouts

    4

    Download brochure
    Download brochure

    Unit features & options

    • Color-coded unified wiring standard
    • 4G LTE and Wi-Fi prep
    • Tuf-Lok thermoplastic duct joiners
    • KeyTV multisource signal controller
    • In-floor heating ducts
    • Tru-fit slide construction
    • 12" I-beam w/ z-frame technology
    • Road Armor shock absorbing hitch pin
    • Hitch Vision w/ LED lighting
    • 2" thick CNC routed, dual-layered lauan, high-gloss fiberglass sidewalls w/ double laminated & insulated rear wall
    • Frameless tinted safety glass windows
    • Dual pane frameless windows w/ safety tint (Optional)
    • MaxTurn front cap w/ KeyShield automotive-grade paint
    • Fully walkable roof w/ Alpha seamless TPO membrane system and 5" rafters
    • Rear ladder
    • Hydraulic slideouts on main level w/ individual selector valves & electric slideouts on upper deck
    • Insulated underbelly w/ forced hot air & electric tank heaters
    • 7000 lb Dexter Gladiator thick wall axles w/ upgraded springs & Nev-R-Adjust brakes
    • Road Armor suspension w/ 360° vibration control
    • Premium Sailun G-rated tires w/ 6-year manufacturer warranty & Tredit Care Plus roadside assistance
    • Spare tire
    • Ground Control 6 point hydraulic auto-leveling w/ hitch memory
    • 6' 4" tall 30" wide entry door w/ screen defender & friction hinge
    • MORryde Step Above entry steps w/ strut assist

    Unit features & options

    • Color-coded unified wiring standard
    • 4G LTE and Wi-Fi prep
    • Tuf-Lok thermoplastic duct joiners
    • KeyTV multisource signal controller
    • In-floor heating ducts
    • Tru-fit slide construction
    • 12" I-beam w/ z-frame technology
    • Road Armor shock absorbing hitch pin
    • Hitch Vision w/ LED lighting
    • 2" thick CNC routed, dual-layered lauan, high-gloss fiberglass sidewalls w/ double laminated & insulated rear wall
    • Frameless tinted safety glass windows
    • Dual pane frameless windows w/ safety tint (Optional)
    • MaxTurn front cap w/ KeyShield automotive-grade paint
    • Fully walkable roof w/ Alpha seamless TPO membrane system and 5" rafters
    • Rear ladder
    • Hydraulic slideouts on main level w/ individual selector valves & electric slideouts on upper deck
    • Insulated underbelly w/ forced hot air & electric tank heaters
    • 7000 lb Dexter Gladiator thick wall axles w/ upgraded springs & Nev-R-Adjust brakes
    • Road Armor suspension w/ 360° vibration control
    • Premium Sailun G-rated tires w/ 6-year manufacturer warranty & Tredit Care Plus roadside assistance
    • Spare tire
    • Ground Control 6 point hydraulic auto-leveling w/ hitch memory
    • 6' 4" tall 30" wide entry door w/ screen defender & friction hinge
    • MORryde Step Above entry steps w/ strut assist

    Full specifications

    As provided in the original listing

    AC BTU30000 btu
    Available BedsQueen
    Awning Info10' & 13' Electric with LED Lights
    Axle Count2
    Axle Weight7000 lbs
    Black Water Capacity49 gals
    Cargo Capacity3173 lbs
    Convection CookingYes
    Cooktop Burners3
    Dry Weight13427 lbs
    Electrical Service50 amp
    Ext Height13 ft 4 in
    Fresh Water Capacity66 gals
    Furnace BTU35000 btu
    Grey Water Capacity88 gals
    Hitch Weight2695 lbs
    LP Tank Capacity30
    Length41 ft
    Number of Awnings2
    Number of LP Tanks2
    Refrigerator Size18 cu ft
    Refrigerator TypeFour Door RV
    Shower Size48" x 30"
    Shower TypeShower w/Seat
    Sleeps4
    Slides4
    TV InfoLR 50" LED HDTV, BR 32" LED HDTV
    Tire Size16"
    Washer/Dryer AvailableYes
    Water Heater Capacity12 gal
    Water Heater TypeDSI Gas/Electric

    Full specifications

    As provided in the original listing

    AC BTU30000 btu
    Available BedsQueen
    Awning Info10' & 13' Electric with LED Lights
    Axle Count2
    Axle Weight7000 lbs
    Black Water Capacity49 gals
    Cargo Capacity3173 lbs
    Convection CookingYes
    Cooktop Burners3
    Dry Weight13427 lbs
    Electrical Service50 amp
    Ext Height13 ft 4 in
    Fresh Water Capacity66 gals
    Furnace BTU35000 btu
    Grey Water Capacity88 gals
    Hitch Weight2695 lbs
    LP Tank Capacity30
    Length41 ft
    Number of Awnings2
    Number of LP Tanks2
    Refrigerator Size18 cu ft
    Refrigerator TypeFour Door RV
    Shower Size48" x 30"
    Shower TypeShower w/Seat
    Sleeps4
    Slides4
    TV InfoLR 50" LED HDTV, BR 32" LED HDTV
    Tire Size16"
    Washer/Dryer AvailableYes
    Water Heater Capacity12 gal
    Water Heater TypeDSI Gas/Electric